Video resizer

Turn a landscape recording into a vertical, square or custom canvas. Choose whether to preserve the whole frame or fill the new shape.

Up to 100 MB · 5 minutes · files expire after 24 hours

Prepare video
Original sample video · 960 × 540
Fit with padding · 270 × 480 · 132,866 bytes
Actual padded export keeps the complete landscape picture
Crop to fill · 270 × 480 · 135,439 bytes
Actual crop export fills the portrait canvas

Change the file. Keep the choice.

Your source stays available while you inspect the processed file. Play the result before you keep it.

Open this sample

Measured local sample, October 4, 2026: the 960 × 540, 13.750-second H.264/AAC source is 140,184 bytes. Fit export at 270 × 480 is 132,866 bytes; crop export is 135,439 bytes. Both retain 13.750 seconds and H.264/AAC. These are fixture results, not a quality guarantee.

How to resize a video

  1. 1.

    Upload your video or use a sample.

  2. 2.

    Choose dimensions, fit or crop, and focal placement.

  3. 3.

    Process, play the result, and download the MP4.

Fit or crop?

Fit keeps the whole picture and adds padding. Crop fills the canvas and removes part of the picture. Neither option stretches the image. Check faces, demonstrations and text at the edges before exporting.

Dimensions are only part of the result

A new shape does not create detail missing from the original. Re-encoding can change quality. Inspect the exported dimensions and play both picture and audio before sharing.

Sources & context

Source pages retrieved 2026-10-04. Examples labelled illustrative are explanations, not saved processing results.

The next step

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